Abiotic nitrous oxide production from sediments and brine of Don Juan Pond, Wright Valley Antarctica, at Mars analog temperatures (–40°C)

• Main Authors: Schutte, Charles A., Samarkin, Vladimir A., Peters, Brian, Madigan, Michael T., Casciotti, Karen L., Joye, Samantha B.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Code Ocean 2022
• Subjects: Capsule; Earth Sciences; Antarctica; Mars; extreme environment; exobiology; nitrous oxide; biosignatures; Don Juan Pond; Wright Valley; Antarc*
• Online Access: https://dx.doi.org/10.24433/co.6151632.v1; https://codeocean.com/capsule/2266873/tree/v1

The presence of biogenic gases such as oxygen, methane, and nitrous oxide (N2O) in the atmospheres of extraterrestrial bodies have been postulated as biosignatures of life. Abiotic N2O production was recently documented in Don Juan Pond, Antarctica, a cold, hypersaline Mars analog environment. Here...